{"id":15740,"date":"2020-06-16T12:36:17","date_gmt":"2020-06-16T10:36:17","guid":{"rendered":"https:\/\/caen-new.filanda.it\/7204\/"},"modified":"2021-12-09T09:56:12","modified_gmt":"2021-12-09T08:56:12","slug":"7204","status":"publish","type":"post","link":"https:\/\/caen-new.filanda.it\/en\/7204\/","title":{"rendered":"Design your own RAIN RFID reader"},"content":{"rendered":"
\n

Designing a high performance\u00a0RAIN RFID<\/a>\u00a0reader is not an easy job. Even if today you can choose a chipset platform on the market that implements most of the needed features and build the reader around it, you still have to face with many technical details, especially regarding the correct handling of Ultra High Frequency signals. So, even if you don\u2019t need to know every detail of the RAIN RFID air protocol[1]<\/a>, you still need very good radio frequency skills to obtain good reading performances and to comply with regulations.<\/p>\n

Reading tags at long distances requires two main things: generate a high power signal to \u201cactivate\u201d the tags and a good receiver sensitivity in order to be able to \u201cintercept\u201d the very small signals reflected by the tags[2]<\/a>\u00a0but none of the two come for free. To generate high power levels you need to add a power amplifier (and other circuitry) between the chipset output and the antenna connector and assure that the resulting signal is clean enough in order to avoid interferences, to comply with regulations and to avoid the self jamming effect[3]<\/a>. All these aspects require high radiofrequency skills for the design and a specific care on the manufacturing of the PCB (Printed Circuit Board).<\/p>\n

\"CAEN<\/a><\/p>\n

But, if you are looking to build a\u00a0RAIN RFID<\/a>\u00a0reader or to embed the technology in your device, there is a simpler way.\u00a0CAEN RFID<\/a>\u00a0designed the\u00a0Hadron (R4320C)<\/a>\u00a0module, a complete high performance\u00a0RAIN RFID<\/a>\u00a0reader in a compact form factor. The module solves internally all the complexity of the RF design offering 4 anten able to provide up to 31.5dBm (1.4W) of power and serial and USB interface for a simple communication with the controller.<\/p>\n

\"BeagleBone<\/p>\n

So, combining the\u00a0Hadron<\/a>\u00a0module with a computing platform, you can design a smart and high performance\u00a0RAIN RFID<\/a>\u00a0reader with limited design efforts. Depending on the project, the computing platform can be custom designed or chosen from the many available on the market, such as an Arduino, a Raspberry or a BeagleBone just to cite some of the well-known ones. The communication between the computing platform and the\u00a0Hadron<\/a>\u00a0module via the USB interface is fast and easy to implement but, if the CPU does not include an USB host interface (like it could be for a small microprocessor), the module can be fully controlled using a serial line\u00a0 compatible with a direct connection to the microcontrollers (TTL levels).<\/p>\n

To further simplify the integration and control of the Hadron module,\u00a0CAEN RFID<\/a>\u00a0provides a complete SDK for the most common programming languages (Java, .NET and C) so that you don\u2019t need to write the code for the protocol interpretation but just the code for the solution. Furthermore\u00a0CAEN RFID<\/a>\u00a0offer in depth technical support on both hardware and software topics as well as support for the certification process of your product using its modules.<\/p>\n

[1]<\/a>\u00a0the protocol used by readers and tags to communicate each other<\/p>\n

[2]<\/a>\u00a0passive RAIN RFID tags have no power source to generate signals so they use a technology called backscatter that use signal reflections to communicate with the reader<\/p>\n

[3]<\/a>\u00a0self-generated noise that create problems with the receiver part of the reader<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Designing a high performance\u00a0RAIN RFID\u00a0reader is not an easy job. Even if today you can choose a chipset…<\/p>\n","protected":false},"author":1,"featured_media":15741,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[99],"tags":[],"class_list":["post-15740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"\nDesign your own RAIN RFID reader - CAEN RFID<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Design your own RAIN RFID reader - CAEN RFID\" \/>\n<meta property=\"og:description\" content=\"Designing a high performance\u00a0RAIN RFID\u00a0reader is not an easy job. 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